Clinical Study of Inguinal Lymph Node Metastasis in Anal Canal Adenocarcinoma

Harunobu Sato, Koji Masumori, Yoshikazu Koide, Junichiro Hiro, Yosuke Tajima, Tadahiro Kamiya, Yeongcheol Cheong, Kunihiro Toyama, Koichi Suda

Research output: Contribution to journalArticlepeer-review


We reviewed clinical records of 73 cases with anal canal adenocarcinoma who underwent bilateral inguinal lymph node (ILN)dissection. Eleven patients with positive ILN metastasis(ILNM)were compared with 62 patients with negative ILNM in clinicopathological items and treatment outcomes to evaluate the effectiveness of ILN dissection. Positive ILNM were older, higher preoperative serum levels of CEA and CA19-9, more frequencies of undifferentiated carcinoma, T4b and severe lymphatic invasion than negative ILNM. And the number of mesorectal and lateral node metastasis were significantly more in positive ILNM than negative ILNM. Although the frequency of curability A surgery was significantly less in positive ILNM (63.6%)than negative ILNM(93.5%), there were no significant differences in recurrence rate and prognosis between positive ILNM and negative ILNM in Stage Ⅲ cancer. Recurrence in ILN occurred significantly more in positive ILNM (2 cases) than in negative ILNM(0 case)as initial recurrent site. And recurrence in pelvic local site occurred significantly more in positive ILNM(4 cases)than in negative ILNM(6 cases). Although there was no significant difference in oncological outcome in Stage Ⅲ anal canal adenocarcinoma, ILN recurrence and pelvic local recurrence should be cared for positive ILNM in postoperative follow-up.

Original languageEnglish
Pages (from-to)1944-1946
Number of pages3
JournalGan to kagaku ryoho. Cancer & chemotherapy
Issue number13
Publication statusPublished - 01-12-2021

All Science Journal Classification (ASJC) codes

  • Medicine(all)


Dive into the research topics of 'Clinical Study of Inguinal Lymph Node Metastasis in Anal Canal Adenocarcinoma'. Together they form a unique fingerprint.

Cite this